ANTI BLUE LIGHT-glasses can cut the blue light. Relieving eye fatigue, dry and vision falling. Enjoy your digital time, No worry about eye fatigue, blurred vision and headache, you can enjoy a restful deeper sleep.
PHOTOCHROMIC LENS-This photochromic lens are based on the intensity of sunlight and ultraviolet light, darkening the lens. (may not change obviously under weak UV lights)
EYEGLASSES FRAMES-Photochromic lens can be replaced with prescription lenses(reading glasses,bifocal)by your eye doctor.